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Full Discussion: A script need help
Top Forums Shell Programming and Scripting A script need help Post 303039420 by MadeInGermany on Friday 4th of October 2019 05:26:49 AM
Old 10-04-2019
Some awk versions have a problem with parsing a complicated FS.
The following variant takes a simple FS:
Code:
awk -v want="CITY,REGION,STREET" '
function prnsection() {
   if (length(section)) {
     printf "%s",section
# quick loop in random order:
#    for (i in keypos)
# keep the order:
     for (i=1;i in keypos;i++) {
       printf " %s", keys[keypos[i]]
       keys[keypos[i]]="MISSING"
     }
     printf "\n"
   }
}
BEGIN {
   FS="="
# split puts CITY,REGION,STREET to keypos[1,2,3]
# the loop creates keys[CITY,REGION,STREET]
   for (i=split(want, keypos, ",");i;i--) {
       keys[keypos[i]]="MISSING";
   }
}
/^\[/ { prnsection(); section=$0 }
($1 in keys) { keys[$1]=$0 }
END { prnsection() }' infile

These 3 Users Gave Thanks to MadeInGermany For This Post:
green_k Neo wisecracker
 

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LEARN ABOUT OPENSOLARIS

k5srvutil

k5srvutil(1M)						  System Administration Commands					     k5srvutil(1M)

NAME

       k5srvutil - host key table (keytab) manipulation utility

SYNOPSIS

       /usr/sbin/k5srvutil operation [-ik] [-f filename]

DESCRIPTION

       The k5srvutil command allows a system manager to list or change keys currently in his keytab or to add new keys to the keytab.

       The operand operation must be one of the following:

       list	 Lists the keys in a keytab, showing version number and principal name.

       change	 Changes  all  the keys in the keytab to new randomly-generated keys, updating the keys in the Kerberos server's database to match
		 those by using the kadmin protocol. If a key's version number does not match the version number stored in the	Kerberos  server's
		 database,  the operation fails. The old keys are retained so that existing tickets continue to work. If the -i flag is specified,
		 k5srvutil prompts for yes or no before changing each key. If the -k option is used, the old and new keys are displayed.

       delold	 Deletes keys that are not the most recent version from the keytab. This operation should be used at some  point  after  a  change
		 operation  to	remove	old  keys.  If the -i flag is specified, k5srvutil asks the user whether the old keys associated with each
		 principal should be removed.

       delete	 Deletes particular keys in the keytab, interactively prompting for each key.

       In all cases, the default keytab file is /etc/krb5.keytab file unless this is overridden by the -f option.

       k5srvutil uses the kadmin(1M) program to edit the keytab in place. However, old keys are retained, so they are available in case  of  fail-
       ure.

OPTIONS

       The following options are supported:

       -f filename    Specify a keytab file other than the default file, /etc/krb5.keytab.

       -i	      Prompts user before changing keys when using the change or delold operands.

       -k	      Displays old and new keys when using the change operand.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWkdcu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       ktutil(1), kadmin(1M), attributes(5)

SunOS 5.11							    29 Aug 2006 						     k5srvutil(1M)
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